System for real-time detecting leakage of underground volatile compound

Abstract

The present invention relates to a real-time underground volatile organic compound leakage detection system and, more specifically, to a real-time underground volatile organic compound leakage detection system for minimizing contamination and allowing a rapid response by detecting beforehand in real time the spread of contamination in the soil and groundwater from environmental accidents due to leaks of oil, overflow oil and the like from the ground and underground storage tanks of a facility which is to be monitored for oils and harmful chemical substances comprising volatile organic compounds (VOCs). The system comprises: a monitoring well, provided in the periphery of the facility to be monitored, for collecting volatile organic compounds (VOCs) leaked from the facility to be monitored; a gas sensor module provided inside the monitoring well and for detecting the volatile organic compounds (VOCs) and measuring the concentration; a communication module for wirelessly transmitting detection and concentration sensor data measured by means of the gas sensor module; and a control center server for displaying the detection and concentration sensor data received from the communication module, and outputting a monitoring screen.

What is claimed is: 
     
         1 . A real-time underground volatile-organic-compound leakage detection system, comprising:
 a monitoring well provided near a facility to be monitored for oils and harmful chemicals including volatile organic compounds (VOCs) and configured to collect volatile organic compounds (VOCs) leaking from the facility to be monitored;   a gas sensor module provided inside the monitoring well and configured to detect the volatile organic compounds (VOCs) and measure a concentration thereof;   a communication module configured to wirelessly transmit detection and concentration sensor data measured using the gas sensor module; and   a control center server configured to display the detection and concentration sensor data received from the communication module and output a monitoring screen.   
     
     
         2 . The real-time underground volatile-organic-compound leakage detection system according to  claim 1 , wherein the gas sensor module detects the volatile organic compounds (VOCs) depending on a change in an electrical resistance value when coming into contact with the volatile organic compounds (VOCs), and measures the concentration thereof. 
     
     
         3 . The real-time underground volatile-organic-compound leakage detection system according to  claim 1 , wherein the gas sensor module comprises an insulating substrate, a pair of thin-film electrodes formed on the insulating substrate, a conductive carbon powder configured to connect the pair of thin-film electrodes, and a permeable thin polymer film applied on the pair of thin-film electrodes and the conductive carbon powder. 
     
     
         4 . The real-time underground volatile-organic-compound leakage detection system according to  claim 1 , wherein the monitoring screen of the control center server comprises a leakage detection map screen on which the detection and concentration sensor data measured using the gas sensor module of the monitoring well are displayed for each monitoring well on a map on which locations of monitoring wells provided near the facility to be monitored are marked. 
     
     
         5 . The real-time underground volatile-organic-compound leakage detection system according to  claim 4 , wherein the leakage detection map screen separately outputs normal data indicating that a sensor data value displayed for each monitoring well is equal to or less than a preset allowable value, abnormality detection data indicating detection of an abnormality exceeding a normal data range, and leakage detection data indicating leakage detection exceeding an abnormality detection data range. 
     
     
         6 . The real-time underground volatile-organic-compound leakage detection system according to  claim 4 , wherein the monitoring screen of the control center server further comprises a detection status screen on which a location of the facility to be monitored, a sensor data value for each well, a normal state, an abnormality detection state, or a leakage detection state for each well, the gas sensor module for each well, the communication module, a battery maintenance or replacement request, and an action status are displayed.